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Can LPC546xx EMC stall access to external device

Question asked by Isao Takashima on Sep 17, 2019
Latest reply on Sep 17, 2019 by xiangjun.rong

We would like to use the DPRAM (Dual Port RAM) in our product using LPC54605.

https://ja.idt.com/document/dst/713040-datasheet 

The DPRAM will assert BUSY signal to indicate that write access on other port side.

If assert BUSY signal, LPC54605 should insert wait state automatically until negate BUSY signal.

However I cannot find pin to connect BUSY signal of DPRAM.

Which pin can connect BUSY signal to insert wait state?

 

Please reply as soon as possible.

 

Best regards,

Takashima

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